Allah T'ala says in the Holy Quran:

‘Oh you who believe, stand up firmly for justice, as witnesses to God, even if it be against yourselves, or your parents, or your kin, and whether it be against rich or poor; for God can best protect both. Do not follow any passion, lest you not be just. And if you distort or decline to do justice, verily God is well-acquainted with all that you do.’” (Quran 4:135)

In the same book, Allah T'ala elevates obedience and kindness to parents (especially mothers) to a status second only to the worship of Allah:
“Your Lord has decreed that you worship none but Him and that you be kind to parents. Whether one or both of them attain old age in your life, say not to them a word of contempt nor repel them, but address them in terms of honor.” (Qur'an 17:23)

What does it mean if you find out that your father or mother or son have committed a crime? You love them, you will be stricken with grief, you will cry, but you still have to stand for justice. Love and justice must coexist!

In fact, confession of a crime may lead to forgiveness and Mercy of Allah T'ala.
Imran b. Husain reported that a woman from Juhaina came to Allah's Apostle (may peace be upon him) and she had become pregnant because of adultery. She said: Allah's Apostle, I have done something for which (prescribed punishment) must be imposed upon me, so impose that. Allah's Apostle (may peace be upon him) called her guardian and said: Treat her well, and when she delivers bring her to me. He did accordingly. Then Allah's Apostle (may peace be upon him) pronounced judgment about her and her clothes were tied around her and then he commanded and she was stoned to death. He then prayed over her (dead body). Thereupon Umar said to him: Allah's Apostle, you offer prayer for her, whereas she had committed adultery! Thereupon he said: She has made such a repentance that if it were to be divided among seventy men of Medina, it would be enough. Have you found any repentance better than this that she sacrificed her life for Allah, the Majestic? (Muslim Book 017, Number 4207)

The person being punished should not be cursed.

Narrated Abu Salama:
Abu Huraira said, "A man who drank wine was brought to the Prophet. The Prophet said, 'Beat him!" Abu Huraira added, "So some of us beat him with our hands, and some with their shoes, and some with their garments (by twisting it) like a lash, and then when we finished, someone said to him, 'May Allah disgrace you!' On that the Prophet said, 'Do not say so, for you are helping Satan to overpower him.' " (Bukhari Volume 8, Book 81, Number 768)

Ishaq Zahid
May 28, 2011